when the video was taken, they had 144 days of days without a...

when the video was taken, they had 144 days of days without a lost-time accident. Things seem to be running smoothly from an operational standpoint.

It looks like there are two different sites they are working on ... one appears to be in Marcory Bietri (the treatment plant) and construction is well underway on that site, and the other is in a more remote area which was being dug up at the back end of the video... maybe they just showed the more recent clips at the start of the video, and the groundworks at the end of the video.. though the surroundings definitely look different.